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GEORGE CROMPTON.

Improvement in Piled Fabrics.

"No. 128,286, PatentedJune25, 187 2.

PATENT Orrron GEORGE GROMPTON, OF WORCESTER, MASSAOHUSETTS.

IMPROVEMENT IN PILED FABRICS.

Specification forming part of Letters Patent No. 128,286, dated J nne25, 1872.

To all whom it may concern:

Be it known that I,'GEORGE CROMPTON, of Worcester, in the county ofWorcester and State of Massachusetts, have invented an Improvement inPile-Fabrics; and I do hereby declare that the following, taken inconnection with the drawing which accompanies and forms part of thisspecification, is a description of my invention sufficient to enablethose skilled in the art to practice it.

United States Letters Patent, No. 125,026, have been granted to me foran improved pilecarpet, the invention shown in and covered by saidpatent consisting in a pile-fabric in which the warp-loops are bound byand interlocked with the weft-threads. Each loop-warp, instead ofpassing simply under the adjacent upper piles of weft-thread, alsoextends over the upper and under the under picks, so as to be fastenedand interlocked by and with both top and bottom picks, thereby bindingthe pile or color warp so as to render it impossible to draw it up orravel it to any extent beyond any one loop or those next adjacent to it.

My present invention relates to the construction or formation ofpile-fabrics, in which the loops of pile or color warp are thus secured;and the invention may be considered as an improvement upon such patentedinvention,or, more properly, as a specific and new disposition orarrangement of the threads or yarns of a pile-fabric embodying the saidpatented invention.

In the disposition of the threads, as shown in my said patent, there isa pick of weft under the pile-wire, and between the pile andstuffing-warp and above the stuffing, and a pick of weft under thestuffing and over the pile-warp, with sometimes a pick of weft alsobetween the pile-wires above the stuffing-warp and over the pile-warp.

In my present departure from such specific structure or disposition ofthe threads, I so insert the pick that there shall always be two ofweft-picks under the pile, the pile-warp extending to the back of thestuffing, and being there fastened by the back or bottom pick.

The drawing illustrates at A, B, and G the collocation of threads forthe successive picks,

and at D a modification, at A, B, and 0, there being two picks under thewire, and no pick between the wires, while at I) there are two picksunder the wire and a pick between the wires.

a denotes the worsted warp; b, the stuffingwarp; and c d the two halvesof the linenwarp. f denotes the pile-wires; g h i, the weft orshuttlethreads. The picks repeat themselves after six picks. At the first pickA, the worsted warp a is up, the stuffing-warp b and half of the linenwarp d are down, and half the linen warp c is-at the middle, thusforming a double shed--the top one for insertion of a pile-wire, f, andthe bottom for insertion of a pick of weft, 9. At the second pick B thelinen warp c and stuffing-warp b are up, and the worsted warp a and thelinen warp d are down, making a shed for insertion of the pick of Wefth. At the third pick 0 the linen warp c and the worsted warp a are up,and the warps b and d are down, forming a shed for insertionof a pick ofweft, t. The next three sheds are the same as those described, exceptthat the positions of the linen warps are reversed-half of warp d beingup and half of warp 0 being down.

In the fabric thus formed two picks of weft are inserted under eachpile-wire with no pick of weft between the pile-wires, and the pilewarpextends to and is fastened against the back of the stuffingby the backpick.

In the modification shown at D the pilewarp extends to the back of thestuffing, and is fastened by the back pick, as at A, and there are twopicks under each wire, as at A, with an additional pick between thewires.

The improved fabric having two picks of weft under each pile, with thepile-warp fastened by the back pick, substantially as shown anddescribed.

Witnesses: GEO. OROMPTON.

' J. A. WARE,

J. B. LYME.

